Pantech C530 Manuale Utente

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FCC Hearing-Aid Compatibility (HAC) Regulations for Wireless 
Devices 
 
On July 10, 2003,  the U.S. Federal Communications Commission (FCC) 
Report and Order in WT Docket 01-309 modified the exception of wireless 
phones under the Hearing Aid Compatibility Act of 1988 (HAC Act) to 
require digital wireless phones be compatible with hearing-aids.  The intent 
of the HAC Act is to ensure reasonable access to telecommunications 
services for persons with hearing disabilities.   
 
While some wireless phones are used near some hearing devices (hearing 
aids and cochlear implants), users may detect a buzzing, humming, or 
whining noise. Some hearing devices are more immune than others to this 
interference noise, and phones also vary in the amount of interference they 
generate. 
 
The wireless telephone industry has developed a rating system for wireless 
phones, to assist hearing device users find phones that may be compatible 
with their hearing devices.  Not all phones have been rated.   Phones that 
are rated have the rating on their box or a label located on the box.  
 
The ratings are not guarantees. Results will vary depending on the user’s 
hearing device and hearing loss.  If your hearing device happens to be 
vulnerable to interference, you may not be able to use a rated phone 
successfully.  Trying out the phone with your hearing device is the best way 
to evaluate it for your personal needs. 
 
M-Ratings: Phones rated M3 or M4 meet FCC requirements and are likely 
to generate less interference to hearing devices than phones that are not 
labeled. M4 is the better/higher of the two ratings. 
 
T-Ratings: Phones rated T3 or T4 meet FCC requirements and are likely to 
generate less interference to hearing devices than phones that are not 
labeled. T4 is the better/higher of the two ratings. 
 
Hearing devices may also be rated.  Your hearing device manufacturer or 
hearing health professional may help you find this rating.  Higher ratings 
mean that the hearing device is relatively immune to interference noise. 
The hearing aid and wireless phone rating values are then added together. 
A sum of 5 is considered acceptable for normal use.  A sum of 6 is 
considered for best use.